<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>插值表达式</title>
</head>
<body>
    <div id="app">
        {{3+1}}<br>
        {{1}}<br>
        {{name}}<br>
        {{add()}}
    </div>
</body>
<script src="../node_modules/vue/dist/vue.js"></script>
<script>
    //插值表达式只接受返回的值
    let vm = new Vue({
        el:"#app",
        data:{
            name:"jiji"
        },
        methods:{
           add(){
               return 3+3;
           }
        }
    })
</script>
</html>